Common faults and treatment methods of tensile testing machine 1. When the tensile testing machine is loaded, the pointer vibrates or stops when it stops.
1. Clutch gear wear: need to be repaired or replaced.
2. The friction washer or spring wear of the friction disc: the leather washer or spring needs to be replaced.
3, the joystick shift: adjust the joystick to make it fit with the socket.
Second, the pointer does not return to zero when the pendulum is replaced
1. The tensile testing machine is not installed horizontally: adjust the level of the testing machine with a level meter.
2, the pendulum is not vertical: only hang A ç £. Adjust the balance and make it vertical.
Third, the tensile test machine pendulum return position is too fast or too slow
1. The buffer valve position is improperly placed: adjust the buffer valve to the appropriate position.
2. The viscosity of the hydraulic oil is too low or too high: when the viscosity of the hydraulic oil is too low, the pendulum will fall back quickly, and when the viscosity is high, it will fall slowly. The hydraulic fluid of the appropriate viscosity should be replaced.
3. The inside of the buffer valve, the oil pipe or the hydraulic oil is dirty: cleaning the buffer valve and the oil pipe. Replace the hydraulic fluid.
Fourth, the tensile test machine pointer back to zero lag or instability
1. The pointer bearing and the spindle bearing are corroded or oily: clean or replace the bearing.
2. The deformation of the toothed rod or the toothed rod does not mesh with the gear: straighten the toothed rod or clean, trim the gear, the sheave and other transmission components.
3. There is dirt in the buffer valve: cleaning the buffer valve.
V. The positive deviation of the tensile test machine
1. The short arm blade is loose: the blade is tight.
2, the pendulum is light: give the weight of the sputum (to balance the weight of A, B, C )).
Sixth, the main reason for the negative deviation of the indication is that the frictional resistance between the components is too large.
1. The frictional resistance of the pointer bearing, the pendulum shaft bearing and the force measuring transmission component is too large: mainly to adjust and clean the bearing and the force transmission component. Eliminate abnormal frictional resistance.
2. The upper jaw and the follower pin spring tightness and the frictional resistance of the drawing device are large: adjust the upper chuck, the driven needle spring piece tightness and the drawing device parts. Eliminate abnormal frictional resistance.
3. The joint between the piston rod and the swing rod is not flexible: adjust the joint between the two. Make it flexible.
Seven, slave needle drag or shift
1. The effect of the spring force of the driven needle spring piece or the frictional resistance of the driven needle and the indicator disc: adjust the elastic force of the driven needle spring piece or the gap between the driven needle and the indicator disc.
2. There is a deviation between the two ends of the driven needle: adjust the weight of both ends to make it balanced.
Eight, the deviation of the indication value is irregular
1. The gears and gears are oily, worn or burred: eliminate the oil stains and burrs of the gear bars and gears, find the contact points of the gear bars when the gears are out of tolerance, and then correct the gear bars and gears; if the error cannot be eliminated. Replace the rack and gear.
2, tensile testing machine test machine installation is not level: adjustment level.
3. Bending the rack: straighten or replace the rack and adjust the gap of the rolling sheave.
Nine, after the computer software is online, the message box appears to be overloaded.
The solution is to check whether the communication line between the computer and the test machine is off; check whether the online selection sensor is selected correctly; check whether the sensor has been knocked when the most recent test or keyboard is operated; check whether the software calibration or calibration function is used before the problem occurs; Check if you have manually changed other calibration values, calibration values, or other information in the hardware parameters.
Ten, the test machine host power is not bright, can not move up and down.
The solution is to check whether the power supply line connected to the test machine is connected properly; check whether the emergency stop switch is in the screwed state; check whether the power supply voltage of the access test machine is normal; check whether the fuse on the machine socket is blown, please take out the spare fuse Just install it.
11. The main power of the test machine is powered but the device cannot move up and down.
The solution is to check if the device is still unable to move after 15S (time), because the host needs self-test after booting, it takes about 15S time; check whether the upper and lower limits are in the proper position, there is a certain running space; check the access test machine Whether the power supply voltage is normal.
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1. Clutch gear wear: need to be repaired or replaced.
2. The friction washer or spring wear of the friction disc: the leather washer or spring needs to be replaced.
3, the joystick shift: adjust the joystick to make it fit with the socket.
Second, the pointer does not return to zero when the pendulum is replaced
1. The tensile testing machine is not installed horizontally: adjust the level of the testing machine with a level meter.
2, the pendulum is not vertical: only hang A ç £. Adjust the balance and make it vertical.
Third, the tensile test machine pendulum return position is too fast or too slow
1. The buffer valve position is improperly placed: adjust the buffer valve to the appropriate position.
2. The viscosity of the hydraulic oil is too low or too high: when the viscosity of the hydraulic oil is too low, the pendulum will fall back quickly, and when the viscosity is high, it will fall slowly. The hydraulic fluid of the appropriate viscosity should be replaced.
3. The inside of the buffer valve, the oil pipe or the hydraulic oil is dirty: cleaning the buffer valve and the oil pipe. Replace the hydraulic fluid.
Fourth, the tensile test machine pointer back to zero lag or instability
1. The pointer bearing and the spindle bearing are corroded or oily: clean or replace the bearing.
2. The deformation of the toothed rod or the toothed rod does not mesh with the gear: straighten the toothed rod or clean, trim the gear, the sheave and other transmission components.
3. There is dirt in the buffer valve: cleaning the buffer valve.
V. The positive deviation of the tensile test machine
1. The short arm blade is loose: the blade is tight.
2, the pendulum is light: give the weight of the sputum (to balance the weight of A, B, C )).
Sixth, the main reason for the negative deviation of the indication is that the frictional resistance between the components is too large.
1. The frictional resistance of the pointer bearing, the pendulum shaft bearing and the force measuring transmission component is too large: mainly to adjust and clean the bearing and the force transmission component. Eliminate abnormal frictional resistance.
2. The upper jaw and the follower pin spring tightness and the frictional resistance of the drawing device are large: adjust the upper chuck, the driven needle spring piece tightness and the drawing device parts. Eliminate abnormal frictional resistance.
3. The joint between the piston rod and the swing rod is not flexible: adjust the joint between the two. Make it flexible.
Seven, slave needle drag or shift
1. The effect of the spring force of the driven needle spring piece or the frictional resistance of the driven needle and the indicator disc: adjust the elastic force of the driven needle spring piece or the gap between the driven needle and the indicator disc.
2. There is a deviation between the two ends of the driven needle: adjust the weight of both ends to make it balanced.
Eight, the deviation of the indication value is irregular
1. The gears and gears are oily, worn or burred: eliminate the oil stains and burrs of the gear bars and gears, find the contact points of the gear bars when the gears are out of tolerance, and then correct the gear bars and gears; if the error cannot be eliminated. Replace the rack and gear.
2, tensile testing machine test machine installation is not level: adjustment level.
3. Bending the rack: straighten or replace the rack and adjust the gap of the rolling sheave.
Nine, after the computer software is online, the message box appears to be overloaded.
The solution is to check whether the communication line between the computer and the test machine is off; check whether the online selection sensor is selected correctly; check whether the sensor has been knocked when the most recent test or keyboard is operated; check whether the software calibration or calibration function is used before the problem occurs; Check if you have manually changed other calibration values, calibration values, or other information in the hardware parameters.
Ten, the test machine host power is not bright, can not move up and down.
The solution is to check whether the power supply line connected to the test machine is connected properly; check whether the emergency stop switch is in the screwed state; check whether the power supply voltage of the access test machine is normal; check whether the fuse on the machine socket is blown, please take out the spare fuse Just install it.
11. The main power of the test machine is powered but the device cannot move up and down.
The solution is to check if the device is still unable to move after 15S (time), because the host needs self-test after booting, it takes about 15S time; check whether the upper and lower limits are in the proper position, there is a certain running space; check the access test machine Whether the power supply voltage is normal.
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